
AD7266
Rev. B | Page 3 of 28
SPECIFICATIONS
TA = TMIN to TMAX, VDD = 2.7 V to 3.6 V, fSCLK = 24 MHz, fS = 1.5 MSPS, VDRIVE = 2.7 V to 3.6 V; VDD = 4.75 V to 5.25 V,
fSCLK = 32 MHz, fS = 2 MSPS, VDRIVE = 2.7 V to 5.25 V; specifications apply using internal reference or external reference = 2.5 V ± 1%,
Table 1.
Parameter
Specification
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
71
dB min
fIN = 50 kHz sine wave; differential mode
69
dB min
fIN = 50 kHz sine wave; single-ended and
pseudo differential modes
Signal-to-Noise + Distortion Ratio
(SINAD)270
dB min
fIN = 50 kHz sine wave; differential mode
68
dB min
fIN = 50 kHz sine wave; single-ended and
pseudo differential modes
Total Harmonic Distortion (T
HD)2–77
dB max
fIN = 50 kHz sine wave; differential mode
–73
dB max
fIN = 50 kHz sine wave; single-ended and
pseudo differential modes
Spurious-Free Dynamic Range
(SFDR)2–75
dB max
fIN = 50 kHz sine wave
Intermodulation Distortion
(IMD)2fa = 30 kHz, fb = 50 kHz
Second-Order Terms
–88
dB typ
Third-Order Terms
–88
dB typ
Channel-to-Channel Isolation
–88
dB typ
SAMPLE AND HOLD
11
ns max
50
ps typ
200
ps max
Full Power Bandwidth
33/26
MHz typ
@ 3 dB, VDD = 5 V/VDD = 3 V
3.5/3
MHz typ
@ 0.1 dB, VDD = 5 V/VDD = 3 V
DC ACCURACY
Resolution
12
Bits
±1
LSB max
±0.5 LSB typ; differential mode
±1.5
LSB max
±0.5 LSB typ; single-ended and pseudo
differential modes
Differential Nonlinearit
y2, 4±0.99
LSB max
Differential mode
0.99/+1.5
LSB max
Single-ended and pseudo differential modes
Straight Binary Output Coding
Offset Error
±7
LSB max
±2 LSB typ
Offset Error Match
±2
LSB typ
Gain Error
±2.5
LSB max
Gain Error Match
±0.5
LSB typ
Twos Complement Output Coding
Positive Gain Error
±2
LSB max
Positive Gain Error Match
±0.5
LSB typ
Zero Code Error
±5
LSB max
Zero Code Error Match
±1
LSB typ
Negative Gain Error
±2
LSB max
Negative Gain Error Match
±0.5
LSB typ
Single-Ended Input Range
0 V to VREF
V
RANGE pin low
0 V to 2 × VREF
RANGE pin high
Pseudo Differential Input Range: VIN+ VIN6 0 to VREF
V
RANGE pin low
2 × VREF
V
RANGE pin high
Fully Differential Input Range: VIN+ and VIN
VCM ± VREF/2
V
VCM = common-mode voltage7 = VREF/2 VIN+ and VIN
VCM ± VREF
V
VCM = VREF